3 ms·

Well not possible yet. Even Alpha Centauri is 4 light years away.

• nickpsecurity 11y ago
  Another commenter already acknowledged the possibility that it only appears to be that far away and the signal could come from the edge of the solar system (maybe passing through it). Would explain why it was brief and appeared to come from a place having about nothing. The comment you replied to was a joke, though, so it doesn't really matter.